Velocity-Displacement Dependent Friction Coefficient and the Kinematics of Giant Landslide

Abstract

Friction characteristics on the sliding surface of giant landslide is important for investigating the triggering, moving, and deposition. In this research, we incorporating a velocity-displacement dependent friction law into the Newmark method to predict the kinematics of a giant landslide. The parameters of the friction law are determined from the high velocity rotary shear experiments of shale and the fault gouge collected from the Tsaoling landslide site triggered by Chi–Chi earthquake in 1999. Based on the strong ground motion data and the account of a survivor, the proposed approach is validated. It is concluded that the Newmark method incorporating into a velocity-displacement dependent friction law can be used to precisely reproduce the detachment, rapid moving, and long run-out of a giant landslide.